diff options
| -rw-r--r-- | hw/msix.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/msix.c b/hw/msix.c index 63b41b9933..29696016ad 100644 --- a/hw/msix.c +++ b/hw/msix.c @@ -176,6 +176,12 @@ static void msix_mmio_write(void *opaque, target_phys_addr_t addr, PCIDevice *dev = opaque; unsigned int offset = addr & (MSIX_PAGE_SIZE - 1) & ~0x3; int vector = offset / PCI_MSIX_ENTRY_SIZE; + + /* MSI-X page includes a read-only PBA and a writeable Vector Control. */ + if (vector >= dev->msix_entries_nr) { + return; + } + pci_set_long(dev->msix_table_page + offset, val); msix_handle_mask_update(dev, vector); } |